Does GrapheneOS disable AGPS by default or send information to Google?
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GrapheneOS doesn't include any supplementary location services and only has GPS-based location detection. Adding support for local supplementary location services is planned:
github.com/GrapheneOS/os_
It does include standard support for downloading GPS almanacs to improve GPS.
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GPS almanacs are downloaded via HTTPS GET requests from xtrapath1.izatcloud.net/xtra3grc.bin, xtrapath2.izatcloud.net/xtra3grc.bin or xtrapath3.izatcloud.net/xtra3grc.bin. These are databases of satellite locations speeding up initial GPS lock. There are only a few other default connections, which are all important.
GrapheneOS has no analytics or tracking. It doesn't send data to Google or anyone else. The only default connections are trivial HTTP(S) GET requests fetching trivial data, not sending anything. Updater app connects to seamlessupdate.app every 4 hours to check for updates.
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There are also connectivity checks designed to mimic a web browser user agent are performed by using HTTP and HTTPS to fetch standard URLs generating an HTTP 204 status code. This is used to detect when internet connectivity is lost on a network, which triggers fallback to other
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It's configured that way in AOSP, but I don't think that's actually being used in practice. Let me know if I'm wrong about that since I want to make official documentation on the default connections along with planning out what GrapheneOS should be changing about it.
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